Well, this is what I use http://www.holley.com/12-454-25.asp never any problems feeding this beast. Pulls to 6000rpm all day. specs in signature.
Rob
Rob
170+ GPH HP Series Mechanical Fuel Pump
$430 USD
Street/Strip Carbureted Applications Fits Big Block Chevy V8s Compatible with Gasoline
Forum Discussions about this Product
1 - 10 of 10 Posts
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I found this from Holley, has anyone tried this one? I have not been able to find the Carter 172..... Jegs said it was on back order since March. Summit no longer carries the M60145. Napa, Oreilly, XL, Advance, nobody has it....
http://www.summitracing.com/parts/HLY-12-454-25/
http://www.holley.com/12-454-25.asp
What do you guys think?
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Depending on how much power you make I would look at the Barry Grant race pump (mechanical)I found this from Holley, has anyone tried this one? I have not been able to find the Carter 172..... Jegs said it was on back order since March. Summit no longer carries the M60145. Napa, Oreilly, XL, Advance, nobody has it....
http://www.summitracing.com/parts/HLY-12-454-25/
http://www.holley.com/12-454-25.asp
What do you guys think?
I ran one for years with no isses then gave it away and he is still using it
Why dont you use an electric fuel pump such as a Barry Grant 280 or a Magnafuel quickstar 300 ?
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Joined·145 Postshttp://www.holley.com/12-454-25.asp I have this one on my 650 hp 496. Woorks great and looks nice also.
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I've been battling this issue for way too long now and am seeking some help. After my car sits for a few days I'll go to start it and it will fire up and then load up on fuel. The secondary float will be "stuck open" and will empty the entire bowl of fuel through the venturi's. This is how I've been "fixing" it. I take a wrench and pull the needle out, shake it and put it back in and voila! I go drive for a day or two with no issues. Once in awhile it will happen on the primary side as well.
The fuel system consists of a holley 4781c and what really burns my a$$ is the $280 dollar fuel pump that was suppose to be pre-set at 7.5 psi, the holley 12-454-25. http://holley.com/12-454-25.asp
I payed the extra money for this pump so I wouldn't need to buy a regulator. At idle the fuel pressure is about 11 psi. I talked to holley about both issues and they said that it must be the cam manufacturers (isky) fault for changing the fuel pump lobe profile and they won't take responsibility. :angry: He said I would need to buy a regulator and that this was my problem with the needles sticking. He also said I could try shortening the pump rod. I have tried new needles and even the expensive titanium needles which were worse.
I really hate to spend money on more fuel system pieces as when I spent the money on everything last time I swore it was the last time I would ever dig into it, you guys know how much braided lines cost to make.
Any advice on where to go with this and do you think a regulator set at 7 pounds will fix my needle sticking situation? Anyone ever have this problem before?
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Joined·6,456 Posts
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Joined·7,380 Posts
The regular 12-454-20 are made in Korea mine has worked without a problem since 2010. I also belive its dold under Jegs brand?
https://www.holley.com/products/fue...s/carbureted_mechanical_pumps/parts/12-454-20
The 170 billet I belive is made in Us but is more $. I really like the billet version will probably end up eith one.
https://www.holley.com/products/fue...s/carbureted_mechanical_pumps/parts/12-454-25 -
Joined·3,681 Posts
That bottom Billet one you posted is the one i have. Works great...no regulator.
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Joined·7,380 PostsI like my Holley 12-454-20 it workes without regulator 8 psi at idle with my pro system 1000hp.
My next fuelpump if I need one is probably going to be this Holley Little expensive though.
https://www.holley.com/products/fue...s/carbureted_mechanical_pumps/parts/12-454-25
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